Best Guided Tour: Tour From Jackson or Tour from West Yellowstone Best ... one day in Yellowstone, this two-day itinerary will allow you to see all of the top attractions in Yellowstone.

Smaller eruptions have occurred over the last 160,000 years or so, with two of note within ... calderas within Yellowstone caldera," Stelten said. "For example, the West Thumb of Yellowstone ...

“When we talk about 5,000 wild Yellowstone bison, yes, it’s a lot compared to the two dozen still left standing after near annihilation. But there were once 35 million in the West. We have 800 ...